Lock.



l H; G. COLLINS.

Loox. APPLIOATIOILFILED APR. 11.y 1907.

Patented Sept. 29, 1908.

IINITED RATENT OEEICE.

' HERBERT G. COLLINS, OE NEwfHAvEN, CONNECTICUT, AssIGNOR To sARGENTn-COMPANY, c oF NEW HAVEN, CONNECTICUT, A CORPORATION OE CONNECTICUT.

- .LOCK.

.specification of Letters Patent; Patented sept. 29, 190s.`

- Application mea-April 11, 1o7.fg serial No. 367,480.

To all whom it' may concern."

Beit known thatI, HERBERT G. COLLINS, of the city and county of New Haven and State of Connecticut, have invented new and useful lImprovements in Locks, of which the following is afull, clear,land exact de.

, scription when taken in connection with the l accompanying drawings.

Thisl invention relates to locks, and more yparticularly to that .class of locks known as escutcheon cylinder locks, in which a key or barrel is adapted to be rotated by a keyT insleeve, l hub or barrel, together with suitable tumserted longitudinally therein.

The resent invention is an im rovement inl thef) in LettersA Patent of the United States, #S30,013,granted Sept. '4, 1906, to John H. Shaw,' which lock is provided with a ithaneccentric bore for the key bler mechanism by which the hub or barrel :may be rotated independently of the sleeve', 'or together with it. j

j sleeve.- [with the sleeve, the dog will be -rotated This invention has for its object the "production'ingsuch alock of a bolt operating dog loosely mounted on the sleeve and slidably mounted on the hubor barrel, so lthat lit may rotate w-ithy the hub or barrel independentl of butconcentrically with. the

. enthe hub or barrel is rotated n therewith concentrically with'the sleeve.

To these and-1` other ends, the invention j consists of the improvements and combina- ,'35

tions of parts set forth and `claimed herein- Referringto the drawings, .Figurell repre?" .sents a frontelevation of a lock embodying the invention', Fig. 2, a longitudinal central vertical section through the same, Fig. v3, a

.transverse-.vertical section on .line 3 3 of Fig. 2,1 Figs. 4, and 6, rear views of the gl'ock with thebolt4 operating dog and asso.- ciated--parts shown in different positions,

Fi s. 7 and'lS, views similar to those shown lin igs. 5 and 6, respectively, .With'the plate or -washer removed, and Fig. 9, an inside `detail view of the bolt operatingdog.

In vall figures, similar letters of reference represent likeparts,

The part designated by the letter A rep resents the casing of a cylinder lo'ck, and. B

its face'.A In the casing A projects longitudinally a sleeve 1C having an eccentric bore Orm'of lock set forth an described.

for the hub or barrelD, with the usual slot 4for the key or keys. As 'shown more particularly in Fig. 3, the axis of the sleeve C is above that of the hub or barrel D. Radial I and 3 While with'another key, the tumbler pins may be so shifted that the barrel or hub Will rotate with the sleeve in the casing A.

A bolt oeratin dog H is provided with depending anges the inner faces of which are curved to correspond to the periphery of the sleeve C, so that the bolt operating do Thisl tumblermechanism, as more H may be mounted on the rear end of the sleeve C, and is free to'rotate independently thereon, but concentrically with the axis of thesleeve. Through the central portion of the bolt. operating dog His a longitudinal slot K through which projects a rear eXten-v sion L of the barrel or hub D, so that upon the turning of thehub or barrel the bolt operat- 1 ing dog H Will necessarily be rotated ,therewith. The slot K of the bolt operating dog H is somewhat greater than 'thelength of the rojection L, as shownmore particularly in igs. 7 andS, so that the bolt operating dog is capable of alimited lon itudinal movement on the eXtension'L of the ub or barrel.

A plate or washer M is adaptedl to be fitted .over the dog H, and be secured by means of a screw N, or other suitable means, to the extension L of the hub or barrel. y

By this construction, when the hub or barrel D is rotated alone, the bolt operating dog H will be rotated therewith. but eccentrically thereto. As t-he axis of rotation of the dog is that of the sleeve C which is above the aXis of rotation of the barrel or hub D, the

projection L Will move in the-slot K in the f dog fromthe'position shown in Fig. 4 to that shown in Figs. 5 and 7. When, however, the

sleeve C and barrel 'or hub are rotated to- 'A gether, the bolt operating dog is rotated on thea'Xis of rotation of the sleeve and the eX- tensioh of the hub remains in the same position in the sleeve, as shown moreparticularly in Figs. 6 and 8. Having now described my invention, what I claim anddesire tovsecure b'y Letters Patf for locking said sleeve and barrel or hub yto ent, is rotate together or permitting said barrel or In a lock the combination With a casing of hub to rotate independently, substantially a rotary key barrel or hub, a sleeve loosely as described. 5 mounted in said casing torotate therein, and In Witness whereof, I have hereunto set my 1.3

having an eccentric bore for said barrel'or hand on the 9th day of April, 1907.

hub, a bolt operating dog having a direct HERBERT G. COLLINS. transverse slidlno connection with the barrel Witnesses: or hub, and an lndependent rotary connec- FRANCES M. VALENTINE,

10 tion with the sleeve and tumbler mechanism GEORGE H. CLOSE. 

